David Newman

Newman, a Network World Test Alliance partner, is president of Network Test in West Lake Village, Calif. He can be reached at dnewman@networktest.com.

Review: Is white-box switching the future of networking?

Review: FireEye fights off multi-stage malware

You can't see some malware until it's too late. Sophisticated attacks arrive in pieces, each seemingly benign. Once these advanced attacks reassemble, the target is already compromised.

What is a vulnerability?

Judging by initial appearances, our security testing turned up a ton of vulnerabilities a nearly 150 of them. In reality, however, none represented actual issues in the Huawei switch.

F5 data center firewall aces performance test

Huge data center, check. Multiple 10G Ethernet pipes, check. Load balancer, check. Firewall? Really? Do network architects need to buy yet another box, and likely take a performance hit?

Next-gen firewalls can handle the heat

In Network World's two-part test, reviewers David Newman and Joel Snyder put next-generation firewalls through the ringer. They found that products could forward packets at an impressive clip but throughput dropped with advanced...

Fast-forwarding firewall faceoff

Next-generation firewalls claim to identify application-layer attacks and enforce application-specific policies while delivering top-notch performance, even with advanced security features turned on. Insider (registration required)

High-speed Ethernet planning guide

Ten-gigabit Ethernet was so last year: Standards-based 40- and 100-gigabit Ethernet switches and routers are starting to show up in enterprise networks. Here's what you need to know.

5 steps to high-speed Ethernet

If you're considering the move to 40/100gigabit Ethernet, here are 5 things to keep in mind

How We Tested the Palo Alto PA-5060 firewall

We assessed the performance of the Palo Alto PA-5060 firewall using three sets of tests, covering rates with mixed content, rates with static content, and TCP connection behavior. Two pairs of Spirent Avalanche 3100 GT traffic...

Palo Alto PA-5060 is one fast firewall

Palo Alto's new firewall delivered performance 10 times faster than when we tested in 2008, and came close to its rated capacity of 20Gbps in firewall-only mode, according to our exclusive Clear Choice testing.

How we tested Cisco's Catalyst switch

We assessed the Cisco Catalyst 4500 with tests of functionality, performance and Ethernet energy efficiency. The performance tests used the Spirent TestCenter test instrument to measure layer-2 unicast throughput and latency; layer-3...

Cisco switch delivers 60 watts to the desktop

Cisco doesn't just want to sell you switches. It also wants to be your power distribution vendor.

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